Synchronizing device of low-speed-ratio transmission
A technology of synchronizing device and transmission, applied in the direction of hoisting device, transmission device, transmission device parts, etc., can solve the problems of broken spline teeth, difficulty in weight reduction, etc., so as to reduce the installation distance, reduce the structural weight, and reduce the moment of inertia. Effect
Pending Publication Date: 2022-07-29
XIAN FASHITE AUTOMOBILE TRANSMISSION CO LTD
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Problems solved by technology
The traditional synchronizer of the transmission main box achieves the purpose of reducing the weight by reducing the installation distance to achieve a smaller transmission length, because too small installation distance will cause other problems, and the meshing length of the synchronizer is not enough to cause spline teeth to break and fall Faults such as gear, synchronizer pin or spring falling out
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[0061] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.
[0062] Thus, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary ski...
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The invention discloses a small-speed-ratio transmission synchronizing device which is characterized in that a synchronizer sliding sleeve comprises an internal spline, a synchronizer gear hub comprises an external spline and a groove, and the internal spline of the synchronizer sliding sleeve is meshed with the external spline of the synchronizer gear hub; the steel ball spring packaging type locking mechanism is located in a groove of the synchronizer gear hub. The first synchronizer combination gear ring and the second synchronizer combination gear ring are fixed to the first gear conical part and the second gear conical part respectively. The first synchronizer locking ring and the second synchronizer locking ring are located on the two sides of the steel ball spring packaging type locking mechanism. The first synchronizer locking ring is bent to form a conical part which is matched with the conical part of the second gear; the second synchronizer locking ring is bent to form a conical part which is matched with the conical part of the first gear; the synchronizer sliding sleeve, the synchronizer gear hub, the first gear and the second gear are all arranged on the main shaft in a sleeving mode. Through a friction pair formed by matching with a gear, the gear shifting performance of the synchronizer is improved, and the friction radius is increased.
Description
technical field [0001] The invention belongs to the field of transmissions, and relates to a synchronizing device for a transmission with a small speed ratio. Background technique [0002] With the improvement of engine powertrain technology, it has become a trend for the whole vehicle to develop towards high horsepower, and the commercial vehicle transmission also develops towards high torque, which puts forward higher requirements for the bearing capacity and reliability of transmission gears. In order to facilitate the layout of the vehicle and ensure interchangeability, the overall length of the transmission should not be too long or consistent. In this way, it is also difficult to implement measures to improve the bending fatigue and contact fatigue life of the gear by reducing the installation distance of the traditional synchronizer of the main case to increase the width of the gear under the condition that the total length of the transmission remains unchanged. [0...
Claims
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Login to View More IPC IPC(8): F16H3/38F16H57/023F16H55/17F16H55/08F16D23/04
CPCF16H3/38F16H57/023F16H55/17F16H55/0886F16H57/0018F16D23/04F16D23/025F16H2055/176
Inventor 魏小强严鉴铂刘义彭立印谭少锋高建敏汪鹏鹏田晨李泽
Owner XIAN FASHITE AUTOMOBILE TRANSMISSION CO LTD